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Bruce Atkinson (775.5Kb)

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Map Showing NAFO Management Units

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Cod in Canadian and NAFO Waters

Distribution

Found in the Northwest Atlantic from Greenland to Cape Hatteras

Stocks

Are 12 stocks in total with 9 stocks in Canadian and NAFO waters

2GH (northern Labrador)

2J+3KL (northern cod)

3M (Flemish Cap)

3NO (southern Grand Bank)

3Ps (southern Newfoundland)

4RS-3Pn (northern Gulf of St Lawrence)

4TVn (southern Gulf of St Lawrence)

4VsW (Scotian Shelf)

4X (Bay of Fundy)

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Cod in Canadian and NAFO Waters

History of management

Until the early 1970's the fisheries research administered by the Fisheries Research Board of Canada (FRBC)

Subsequently taken over by Federal Government - Department of Fisheries

ICNAF (International Commission for the Northwest Atlantic Fisheries) provided management

Extension of jurisdiction to 200 nm -1977

NAFO (Northwest Atlantic Fisheries Organization) – 3M and 3NO

CAFSAC (Canadian Atlantic Fisheries Scientific Advisory Council)

Latter replaced by regional/zonal assessments and FRCC (Fisheries Resource Conservation Council) - consults with science and

stakeholders and provides advice to Minister of Fisheries and Oceans on TAC's for cod and other groundfish

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Cod in Canadian and NAFO Waters

Management strategies

Traditionally attempted to fish at Fmax then F0 1

Controls on by-catch of cod in other fisheries through spatial/temporal closures/gear restrictions (mesh sizes and amounts of gear, Nordmore grates, etc)

In Canada introduction of dockside monitoring program to monitor landings more carefully (paid for by industry)

Enforcement through spot checks by fisheries officers on patrol

Observers on larger offshore vessels (Canadian and NAFO)

Surveillance over-flights/aerial photography and patrols/boardings of vessels in NAFO Regulatory Area (NRA)

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Cod in Canadian and NAFO Waters

Assessments

Annual research vessel survey biomass, abundance and catch-rate indices along with age/growth, SSB, condition, etc data

Inshore sentinel fishery catch-rate index (line-trawl and gill net) for 3Pn4RS, 3Ps and 2J3KL cod

Science log-book catch rate indices (< 35' vessels) for 3Pn4RS, 3Ps and 2J3KL cod

Exploitation and stock size estimates from tagging (inshore only) for 3Pn4RS, 3Ps and 2J3KL cod

Other data sources (pre-recruit surveys, hydro-acoustic estimates) for 3Ps and 2J3KL cod

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Cod in Canadian and NAFO Waters

2J+3KL cod ("Northern" cod)

Cod from this stock grow more slowly compared to those in warmer areas

An age 5 cod is presently about 50 cm (about 20 inches) long

Females mature at about age 5, and age at maturity has declined since the early 1980's

Feed on a wide variety of food items

Capelin has historically been the major prey of adults

Historically, many northern cod migrated between over-wintering areas offshore and summer feeding areas inshore

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Cod in Canadian and NAFO Waters

2J+3KL cod ("Northern" cod)

Supported a commercial fishery since the 16th century

Prior to 1960 the catches were generally less than 300,000 t

With higher catches in the late 1960s (max. 800,000 t in 1967), mainly by non-Canadian fleets, the stock declined until the mid- 1970s

After the extension of jurisdiction in 1977, the stock increased until the mid-1980s, but then collapsed in late 1980s and early 1990s

Moratorium on commercial fishing declared in July 1992

Small inshore TAC reintroduced in 1998

Fishery again closed in 2003

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Cod in Canadian and NAFO Waters

3Ps cod

Cod from this stock grow more rapidly compared to northern cod or those in northern Gulf of St. Lawrence

An age 5 cod is presently about 54 cm (about 22 inches) long

Females mature at about age 5, and age at maturity has declined since the early 1980's

Feed on a wide variety of food items

Capelin has historically been an important prey of adults

Sand lance is an important prey item on St. Pierre Bank.

Some offshore cod migrate from offshore over-wintering areas in to summer inshore feeding areas

Stock was not in as poor shape as northern cod when moratorium introduced (1993) - good growth and survival of two year-classes (1989 and 1990) resulted in good rebuilding of stock

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Cod in Canadian and NAFO Waters

3Ps cod

Supported a commercial fishery for decades

During 1960-1970 annual catches generally 60,000 - 80,000 t

Stock heavily exploited by non-Canadian fleets, particularly from Spain

Fishery declined through the 1970's until extension of jurisdiction in 1977, thereafter landings increased until the mid-1980's

French catches increased in the offshore throughout the late 1980s and the stock declined until the early-1990s

Moratorium on commercial fishing declared in August 1993

Small TAC was reintroduced in 1997 - restricted to the inshore and to vessels less than 65 feet in length

Current TAC 15,000 t

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Cod in Canadian and NAFO Waters

3NO cod

Cod from this stock grow more rapidly compared to northern cod or those in northern Gulf of St. Lawrence

Age 5 cod is presently about 55 cm long

Females mature at about age 5

age at maturity has declined since the early 1980's

Feed on a wide variety of food items

Capelin historically an important prey of adults

Sand lance an important prey item in some areas

Some offshore cod over-winter along the slope edge and migrate onto the shallower Grand Banks and to inshore feeding areas in summer

Some seasonal mixing between cod from 3O and 3Ps

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Cod in Canadian and NAFO Waters

3NO cod

Supported a commercial fishery for decades

During 1950's reported catches were variable ranging from 40,000 - 140,000 t

Hand-line fisheries on the shallowest areas of the Grand Banks were replaced by large otter trawlers in recent decades.

Stock was heavily exploited by non-Canadian fleets, particularly from the former USSR and Spain, and catches peaked at 227,000 t in 1967

Fishery declined steadily thereafter to a low of 15,000 t in 1978

From 1979 to 1991 reported catches ranged from 20,000 t to 50,000 t

The stock declined rapidly in the late 1980's and early 1990's

Moratorium was imposed in 1994

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Cod in Canadian and NAFO Waters

3NO cod

Stock remains at an extremely low level

Reported by-catch of cod has increased ten-fold since moratorium imposed

currently at levels that are impeding stock recovery

Heavy and illegal directed fishing on the "tail" of the Grand Bank in NAFO Regulatory Area

Referanser

RELATERTE DOKUMENTER

• Management approach based on advise from ICNAF (now NAFO) from 1979, which stated that no more than 10% of the projected mature biomass should be removed by a fishery (considered a

• Developing the knowledge necessary for integrated management will require that ecosystem objectives be defined, especially for ecosystem components impacted by human

• Large non-Canadian trawlers (mainly the USSR, Poland and GDR) entered the fishery in the 1970’s fishing the slope areas largely as by- catches in the roundnose grenadier fishery.

• Northwest Atlantic population whelps off coast of southern Labrador or northeastern Newfoundland (the ‘Front’), in Davis Strait, and in Gulf of St. Lawrence

• continue to promote, at NAFO, a management scheme for the Flemish Cap shrimp fishery which is effective at controlling fishing effort. • continue to promote, with Greenland,

a ) Investigate all areas of the North Sea for the distribution of cod and plaice eggs – Completed. b ) Identify and delimit areas with high concentrations of cod and plaice eggs –

These results indicate that coastal cod in western Norway, both wild and artificially produced, with nursery grounds in sheltered coastal and fjord areas, are

Cod showed a higher probability of using eelgrass and vegetated hard substrate, available in shallow areas, when sea surface temperature was between 5 and 15°C, using deeper